WO2001006201A3 - Mid-body obturator for a gun-launched projectile - Google Patents
Mid-body obturator for a gun-launched projectile Download PDFInfo
- Publication number
- WO2001006201A3 WO2001006201A3 PCT/US2000/017302 US0017302W WO0106201A3 WO 2001006201 A3 WO2001006201 A3 WO 2001006201A3 US 0017302 W US0017302 W US 0017302W WO 0106201 A3 WO0106201 A3 WO 0106201A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- projectile
- obturator
- gun barrel
- launched
- annular groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B14/00—Projectiles or missiles characterised by arrangements for guiding or sealing them inside barrels, or for lubricating or cleaning barrels
- F42B14/02—Driving bands; Rotating bands
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
An obturator (210, 310, 410) is provided for a projectile (10) launched from a gun barrel (110). The projectile has a mid-body annular groove (22) that includes a shaped surface (26, 30). The obturator includes an annular ring having an inner surface (216, 416) in contact with the shaped surface of the annular groove of the projectile. The annular ring further includes an outer surface (214, 414). When the projectile is in the gun barrel, the outer surface of the annular ring contacts an inner surface (142) of a bore (140) of the gun barrel. The radial distance between the inner surface and the outer surface of the annular ring substantially equals or exceeds the radial distance between the shaped surface of the annular groove and the inner surface of the bore of the gun barrel at at least one point when the projectile is positioned in the barrel. The aft surface (218, 418) may comprise a curved or linearly tapering surface that directs the charges gases created when the projectile is launched such that the gases expand or inflate the obturator. The inner surface further includes a ramp surface (220, 320, 420) allowing the obturator to slide up a ramp (30) of the shaped surface inside the annular groove and the expand. This feature restricts a flow of charge gases from an aft end (18) of the projectile to a forward end (16) of the projectile when the projectile is launched from the gun barrel.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU15682/01A AU773160B2 (en) | 1999-06-29 | 2000-06-22 | Mid-body obturator for a gun-launched projectile |
| DE60042743T DE60042743D1 (en) | 1999-06-29 | 2000-06-22 | BODY-SEALED SEAL AND GUIDE RING FOR PROJECTED PARTS FROM A PROTECTION |
| EP00978198A EP1196736B1 (en) | 1999-06-29 | 2000-06-22 | Mid-body obturator for a gun-launched projectile |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14156299P | 1999-06-29 | 1999-06-29 | |
| US60/141,562 | 1999-06-29 | ||
| US09/447,518 | 1999-11-23 | ||
| US09/447,518 US6295934B1 (en) | 1999-06-29 | 1999-11-23 | Mid-body obturator for a gun-launched projectile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2001006201A2 WO2001006201A2 (en) | 2001-01-25 |
| WO2001006201A3 true WO2001006201A3 (en) | 2001-05-25 |
Family
ID=26839235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US2000/017302 Ceased WO2001006201A2 (en) | 1999-06-29 | 2000-06-22 | Mid-body obturator for a gun-launched projectile |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6295934B1 (en) |
| EP (1) | EP1196736B1 (en) |
| AU (1) | AU773160B2 (en) |
| DE (1) | DE60042743D1 (en) |
| WO (1) | WO2001006201A2 (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6453821B1 (en) * | 1999-06-29 | 2002-09-24 | Raytheon Company | High-temperature obturator for a gun-launched projectile |
| FR2801667B1 (en) * | 1999-11-25 | 2002-01-18 | Giat Ind Sa | CONNECTION DEVICE BETWEEN A SOCKET AND A PROJECTILE AND METHOD OF MOUNTING A BELT ON A PROJECTILE USING SUCH A CONNECTION DEVICE |
| US6672194B2 (en) * | 2001-07-19 | 2004-01-06 | Textron Systems Corporation | Energetic-based actuator device with rotary piston |
| GB0123637D0 (en) * | 2001-09-24 | 2002-08-28 | Qinetiq Ltd | Slipping Obturator |
| DE10157668B4 (en) * | 2001-11-24 | 2014-05-22 | Rheinmetall Waffe Munition Gmbh | bullet |
| US6782830B1 (en) | 2003-09-11 | 2004-08-31 | Alliant Techsystems Inc. | Obturator for large caliber smooth bore ammunition |
| US7262394B2 (en) * | 2004-03-05 | 2007-08-28 | The Boeing Company | Mortar shell ring tail and associated method |
| SE529751C2 (en) * | 2006-05-08 | 2007-11-13 | Bae Systems Bofors Ab | Belted projectiles, their use and manufacture |
| GB0713369D0 (en) * | 2007-07-04 | 2008-03-12 | Bae Systems Plc | Charge Mount |
| DE102008015421A1 (en) * | 2008-03-20 | 2009-09-24 | Rheinmetall Waffe Munition Gmbh | Method of making a cartridge and cartridge having a sabot projectile made by this method |
| US8286558B2 (en) * | 2010-04-22 | 2012-10-16 | Liberty Ammunition, Inc. | Thermoset polymer guide band for projectiles |
| US8950334B1 (en) * | 2013-11-13 | 2015-02-10 | The United States Of America As Represented By The Secretary Of The Army | Pre-deformed obturator for tube-launched projectile |
| AT515209B1 (en) | 2014-03-14 | 2015-07-15 | Hirtenberger Defence Systems Gmbh & Co Kg | bullet |
| US10655943B2 (en) * | 2018-01-03 | 2020-05-19 | Igor Abramov | Mortar system with improved gas seal |
| JP2019124375A (en) * | 2018-01-12 | 2019-07-25 | 株式会社Ｉｈｉエアロスペース | Obturator |
| US12422234B2 (en) * | 2024-02-29 | 2025-09-23 | Raytheon Company | Integrated driving band obturator for artillery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR815222A (en) * | 1936-03-16 | 1937-07-08 | Expanding belt for fletched shells | |
| US2454801A (en) * | 1945-04-23 | 1948-11-30 | Harold H Himmer | Rotating band |
| US2699094A (en) * | 1947-02-19 | 1955-01-11 | Musser Clarence Walton | Rifled firearm which automatically indexes preengraved projectiles |
| US4552071A (en) * | 1982-06-15 | 1985-11-12 | United Technologies Corporation | Two-piece despin obturator |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US910935A (en) | 1909-01-26 | Percy b | ||
| BE380293A (en) | 1930-06-16 | |||
| US3687079A (en) * | 1970-11-20 | 1972-08-29 | Us Army | Sectioned obturating ring |
| US3910194A (en) | 1971-02-01 | 1975-10-07 | Hercules Inc | Projectile rotating band |
| US3760736A (en) | 1971-10-18 | 1973-09-25 | Us Army | Non-metallic rotary bands |
| US3786760A (en) | 1972-06-01 | 1974-01-22 | Pacific Technica Corp | Rotating band for projectile |
| US4366015A (en) | 1980-05-16 | 1982-12-28 | Murray Myles N | Rubber driving band, artillery shell employing same, and method of making the band and assembling same in the shell |
| DE3142636C2 (en) * | 1981-10-28 | 1984-06-14 | Mauser-Werke Oberndorf Gmbh, 7238 Oberndorf | Projectile body with a plastic guide band and method for its manufacture |
| DE3525854A1 (en) * | 1985-07-19 | 1989-01-05 | Mauser Werke Oberndorf | WING-STABILIZED ARROW BULLET |
| GB2243901B (en) | 1986-01-29 | 1992-05-20 | British Aerospace | Projectiles |
| DE3731034A1 (en) | 1987-09-16 | 1990-03-01 | Rheinmetall Gmbh | Projectile for an automatic weapon |
| US4907513A (en) | 1988-05-18 | 1990-03-13 | Honeywell Inc. | High volume obturator assembly method |
| DE3904626A1 (en) | 1989-02-16 | 1990-08-30 | Diehl Gmbh & Co | Discarding sabot for a sub-calibre projectile |
| DE4000167C2 (en) * | 1990-01-05 | 1994-04-14 | Rheinmetall Gmbh | Swirl-stabilized carrier floor with a metallic guide band |
| JPH04198697A (en) | 1990-11-29 | 1992-07-20 | Tech Res & Dev Inst Of Japan Def Agency | Wing stabilizer obturator |
| US5160800A (en) | 1991-04-24 | 1992-11-03 | The United States Of America As Represented By The Secretary Of The Navy | Obturator retaining means |
| GB9322392D0 (en) | 1993-10-29 | 1993-12-22 | Royal Ordnance Plc | Bomb retaining device |
-
1999
- 1999-11-23 US US09/447,518 patent/US6295934B1/en not_active Expired - Fee Related
-
2000
- 2000-06-22 DE DE60042743T patent/DE60042743D1/en not_active Expired - Lifetime
- 2000-06-22 AU AU15682/01A patent/AU773160B2/en not_active Ceased
- 2000-06-22 EP EP00978198A patent/EP1196736B1/en not_active Expired - Lifetime
- 2000-06-22 WO PCT/US2000/017302 patent/WO2001006201A2/en not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR815222A (en) * | 1936-03-16 | 1937-07-08 | Expanding belt for fletched shells | |
| US2454801A (en) * | 1945-04-23 | 1948-11-30 | Harold H Himmer | Rotating band |
| US2699094A (en) * | 1947-02-19 | 1955-01-11 | Musser Clarence Walton | Rifled firearm which automatically indexes preengraved projectiles |
| US4552071A (en) * | 1982-06-15 | 1985-11-12 | United Technologies Corporation | Two-piece despin obturator |
Also Published As
| Publication number | Publication date |
|---|---|
| US6295934B1 (en) | 2001-10-02 |
| WO2001006201A2 (en) | 2001-01-25 |
| EP1196736B1 (en) | 2009-08-12 |
| EP1196736A2 (en) | 2002-04-17 |
| AU773160B2 (en) | 2004-05-20 |
| DE60042743D1 (en) | 2009-09-24 |
| AU1568201A (en) | 2001-02-05 |
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